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AV9248-128

Frequency Generator & Integrated Buffers

Integrated Circuit Systems 

ICS9248-128

SDRAM_STOP# Timing Diagram

SDRAM_STOP# is an sychronous input to the clock synthesizer. It is used to turn off the CPU clocks for low power operation.

SDRAM_STOP# is synchronized by the ICS9248-128. All other clocks will continue to run while the SDRAM clocks are

disabled. The SDRAM clocks will always be stopped in a low state and start in such a manner that guarantees the high pulse

width is a full pulse.

Notes:

1. All timing is referenced to the internal CPU clock.

2. SDRAM is an asynchronous input and metastable conditions may exist. This signal is synchronized to

the SDRAM clocks inside the ICS9248-128.

3. All other clocks continue to run undisturbed.

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